Skip to content
appaloosa scout logo main rounded
HIGH 8.8

CVE-2021-29988

Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.

CVSS v3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS 0.6% percentile 70.2%

Affected tracked apps

Vulnerable CPE configurations

Vendor Product Platform Versions CPE 2.3 URI
mozilla thunderbird Windows <78.13.0 cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
View on NVD ↗